Zona 0 is a fun puzzle / action game that is a faithful translation of the game "Light Cycle" in the classic movie Tron (this is the game most people think of when they say "a Tron-like game," although there are many more games in the movie). As in the movie, the gameplay is simple yet addictive: the object is to surround the computer's yellow cycles with a trail of light emitted from the back of Tron's blue cycle. If Tron's cycle runs into the side walls, or light from any of the other cycles, he dies. There are new surprises in higher levels, and each new enemy vehicle also seem to evade your energy trail better than the last. Overall, a fun game that's good for whiling away a few minutes at a time, although you'll need a lot of perseverance if you want to see the final level, since it is impossible to save your progress. A definite must-have for all Tron fans :)